I can't say for 100% sure, but all the PATS systems i've seen will not allow the car to crank over. The PATS light will just flash rapidly. You say you have spark and fuel. What do the plugs look like after you crank it for a while? Pull a plug and see if the look flooded or anything. Maybe try holding the throttle open about a 1/4 of the way in case your IAC is stuck it will not get air and will not start. The last thing would be to check compression. If you've got spark and fuel and hold the throttle open to verify you're getting air, then compression (timing, head gasket etc...) would be the last thing.
